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ESTIMATION EQUATION FOR CEMENTING EFFICIENCY FACTOR (k-VALUE) BASED ON COMPRESSIVE STRENGTH OF CONCRETE CONTAINING THERMALLY MODIFIED FLY ASH

Year: 2025

Type: article

Abstract: The cementing efficiency factor (k-value) of concrete containing thermally modified fly ash (TMFA) was calculated according to the CEN method based on the concept of the equivalent water-cement ratio, and the estimation equation for the k-value was expressed as a function of the age and water-to-powder ratio of the concrete, the TMFA replacement ratio and the specific surface area.This estimation equation was applied to the kvalue of domestic and foreign FA concretes and was found to be valid for domestic FA concrete.The strength of TMFA and domestic FA concrete was also adequately expressed by the estimated k-value.

Source: Journal of Structural and Construction Engineering (Transactions of AIJ)

DOI: 10.3130/aijs.90.778

Authors: Yoshiaki SATO, Toshihiro OTANI, Yoshitada AKIYOSHI, Masao ISHIDA, Koji HIDAKA

Institutions: Zerotechno Co., Ltd. (Japan), Oita University, Taiheiyo Cement Corporation (Japan)

Language: English

Topic: Concrete and Cement Materials Research

Subfield: Civil and Structural Engineering

Field: Engineering

Domain: Physical Sciences

Open Access status: bronze

OpenAlex ID: W4411796655

FWCI:

Cites: 16

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Related to: 10